LucisArt 3 has been discontinued.
Lucis Pro 6 does everything LucisArt 3 does and much more. 5 Minute Learning Curve.
Lucis Pro 6 is available as downloadable software at a much lower price. There is an upgrade from the Windows LucisArt 3 to the Windows Lucis Pro 6.
The Macintosh Lucis Pro 6 is 32-bit software only. It is priced at a fraction of the price of the Windows software because it will not work in CS6 or Creative Cloud. This is a great deal if you are willing to run an older version of Photoshop or Photoshop Elements. There is no upgrade - the price is too low.
For more information: www.lucispro.com